Error 404 list page article

Hi everybody,
I have a trouble since few days on my new website http://www.pc14.fr/wp. On the news page (http://www.pc14.fr/wp/news/) when I try to go on the second page of my list of articles, I arrive on 404 Error Page (http://www.pc14.fr/wp/news/page/2/).
I don’t know why? I think, I didn’t change anything on the configuration. I use a template, I already use on another website and it’s work very well.
Please help me !
Thank you.